diff --git a/grub-core/commands/eval.c b/grub-core/commands/eval.c new file mode 100644 index 000000000..f826a4f22 --- /dev/null +++ b/grub-core/commands/eval.c @@ -0,0 +1,71 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_err_t +grub_cmd_eval (grub_command_t cmd __attribute__((__unused__)), + int argc, char *argv[]) +{ + int i; + grub_size_t size = argc; /* +1 for final zero */ + char *str, *p; + grub_err_t ret; + + if (argc == 0) + return GRUB_ERR_NONE; + + for (i = 0; i < argc; i++) + size += grub_strlen (argv[i]); + + str = p = grub_malloc (size); + if (!str) + return grub_errno; + + for (i = 0; i < argc; i++) + { + p = grub_stpcpy (p, argv[i]); + *p++ = ' '; + } + *--p = '\0'; + + ret = grub_script_execute_sourcecode (str); + grub_free (str); + return ret; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(eval) +{ + cmd = grub_register_command ("eval", grub_cmd_eval, N_("STRING ..."), + N_("Evaluate arguments as GRUB commands")); +} + +GRUB_MOD_FINI(eval) +{ + grub_unregister_command (cmd); +} +